GE HEALTHCARE MAC 2000, Operator'S Manual

Page: 119 / 226

System Configuration
Resting ECG Setup Fields–Page 1
Field Comment
Gain
Sets the amplitude of the ECG signal. Measurement is
in millimeters per millivolt and includes the following
options:
• 2.5 mm/mV
• 5 mm/mV
• 10 mm/mV
• 20 mm/mV
• 40 mm/mV
• Automatic
The larger the selected measurement, the larger the
waveform. Only the representation of the waveform
changes; signal strength is not affected.
NOTE:
If Automatic is selected, the system calculates
the best gain based on the peak-to-peak
amplitudes of all displayed leads and the
selected display format.
Speed Changes the speed of rhythm printing and the wiper
bar movement across the display.
Measurement is in millimeters per second (mm/s)
and includes the following options:
• 5 mm/s (rhythm) / 12.5 mm/s (display)
• 12.5 mm/s
• 25 mm/s
• 50 mm/s
Low Pass Filter Sets the maximum frequency to include in the
waveform. Restricting frequencies can help eliminate
noise in the waveform. Frequencies are measured in
Hertz (Hz) and include the following options:
• 20 Hz
• 40 Hz
• 100 Hz
• 150 Hz
Selecting a frequency eliminates signals above that
frequency. For example, if you select 40, only signals
that have a frequency of 40 Hz or lower are included
in the waveform.
ADS
Toggles the anti-drift system ( ADS ) on and off. ADS
helps reduce baseline drift.
Line Filter
Enables/disables the line filter defined in Country
Setup .
6 leads: 1x6
Enables/disables a display option that shows one
six-waveform column.
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